Coding style fixes and cleanup for ActionHandler.
Coding style fixes and cleanup for ActionHandler.

Add plugin hooks for before_ and after_ actions. Fixes issue #266, props mattread.

git-svn-id: d0e296eae3c99886147898d36662a67893ae90b2@612 653ae4dd-d31e-0410-96ef-6bf7bf53c507

dragonmantank/Habari,dragonmantank/Habari,dragonmantank/Habari